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Efficient Recombinant Parvovirus Production with the Help of Adenovirus-derived Systems
Published on: April 23, 2012
Transient foamy virus vector production by adenovirus vectors
R A Russell1, G Vassaux, P Martin-Duque
1Jefferiss Research Trust Laboratories, Wright-Fleming Institute, Imperial College School of Medicine at St Mary's Hospital, Norfolk Place, London, UK.
Gene Therapy
|January 23, 2004
Summary
This study developed a novel hybrid vector combining adenovirus and prototype foamy virus (PFV) for stable gene transfer. The new vector enables efficient in vitro transduction and long-term transgene expression in target cells.
Area of Science:
- * Molecular Biology
- * Virology
- * Gene Therapy
Background:
- * Prototype foamy virus (PFV) vectors are explored for gene transfer applications.
- * Adenoviral vectors are widely used but often result in transient gene expression.
- * Developing vectors for stable and efficient gene delivery remains a key challenge.
Purpose of the Study:
- * To create and evaluate a hybrid adenoviral/PFV vector system for stable in vitro gene transfer.
- * To assess the efficiency of transduction and the duration of transgene expression using the hybrid vector.
- * To investigate the mechanism of stable gene expression mediated by the hybrid vector.
Main Methods:
- * Construction of three adenoviral vectors encoding PFV structural genes (gag, pol, env) and the PFV vector genome with a transgene (eGFP).
- * Cotransduction of target cells with the three adenoviral vectors.
- * Monitoring of enhanced green fluorescent protein (eGFP) expression over time and passages.
- * Polymerase Chain Reaction (PCR) analysis to confirm PFV integration.
Main Results:
- * The hybrid vector system achieved transient production of recombinant PFV at titers up to 10(3) vector particles/ml.
- * Stable eGFP expression was observed for up to 60 days (11 passages) in cells transduced with all three adenoviral vectors.
- * PCR analysis confirmed stable PFV integration as the basis for long-term transgene expression, unlike controls.
Conclusions:
- * The adenoviral/PFV hybrid vector facilitates high in vitro transduction efficiency.
- * This novel vector system enables stable transgene expression through PFV integration.
- * The developed hybrid vector shows significant promise for gene therapy applications requiring long-term gene delivery.
